Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa0c9acc380da23…

MALICIOUS

PDF

15.2 KB Created: 2019-06-10 01:33:42 +01:00 Authoring application: mPDF 5.7
MD5: 4b3faf8ab968881664ac3ae5e6e5e62b SHA-1: 0cd14ee5ad0c04776ceedc7233344d8f2d704973 SHA-256: cfa0c9acc380da231e5807969587d78313db152bdcc598807bc4a78f07b70dce
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded external links, a technique often used for SEO poisoning or to direct users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identified this behavior, pointing to 'cefasfese.4pu.com' as the dominant host. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure. The primary attack pattern observed is the distribution of a link farm.

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://cefasfese.4pu.com/6733739735738738/Miquel-Barcelo-by-Miquel-Barcelo-Artigues.pdf
    • http://cefasfese.4pu.com/3732733735732737/This-Time-of-Dying-by-Reina-James.pdf
    • http://cefasfese.4pu.com/3734739739730737/Most-Truly-Love-at-Pemberley-1-by-Reina-M-Williams.pdf
    • http://cefasfese.4pu.com/5735734737732730/Catalina-de-Arag-n-Reina-de-Inglaterra-by-Giles-Tremlett.pdf
    • http://cefasfese.4pu.com/7734731738737737/La-reina-de-las-ranas-no-puede-mojarse-los-pies-by-Davide-Cali.pdf
    • http://cefasfese.4pu.com/4730738737739733/Puna-Wai-Korero-An-Anthology-of-Maori-Poetry-in-English-by-Reina-Whaitiri.pdf
    • http://cefasfese.4pu.com/7731736738736739/Por-Amor-Al-Arte-by-Lourdes-Miquel.pdf
    • http://cefasfese.4pu.com/6733739735730734/Miquel-Barcelo-by-Rudy-Chiappini.pdf
    • http://cefasfese.4pu.com/7731736738737737/La-Llamada-de-la-Habana-by-Lourdes-Miquel.pdf
    • http://cefasfese.4pu.com/7738733735739738/Les-Poilus-D-Orient-by-Pierre-Miquel.pdf
    • http://cefasfese.4pu.com/6733739736735732/Miquel-Barcelo-1987-1997-by-Pep-Subir-s.pdf
    • http://cefasfese.4pu.com/7731730739739737/Biblioteca-Vasconcelos-Library-by-Miquel-Adri-.pdf
    • http://cefasfese.4pu.com/6732731733730739/Ce-Siecle-Avait-Mille-ANS-by-Pierre-Miquel.pdf
    • http://cefasfese.4pu.com/9734733739737/Het-bloed-in-onze-aderen-by-Miquel-Bulnes.pdf
    • http://cefasfese.4pu.com/7735730739734730/Vocabulaire-Progressive-Du-Francais---Nouvelle-Edition-Corriges-by-Claire-Miquel.pdf
    • http://cefasfese.4pu.com/7739733736731730/Dichiaratione-Dell-arco-Fatto-in-Padova-Nella-Venuta-Della-Serenissima-Reina-Bona-Di-Polonia-by-Alessandro-Bassani.pdf
    • http://cefasfese.4pu.com/2735738731731737/All-of-the-Lights-by-K-Ryan.pdf
    • http://cefasfese.4pu.com/3737738732737735/Out-Are-the-Lights-by-Richard-Laymon.pdf
    • http://cefasfese.4pu.com/4736731736738737/All-the-Little-Lights-by-Jamie-McGuire.pdf
    • http://cefasfese.4pu.com/1730736737738735739/When-the-Lights-Went-Out-by-Cris-Baisch.pdf
    • http://cefasfese.4pu.com/6732731733730739/Ce-Siecle-Avait-Mille-ANS-by-Pierr

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